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ICSE Class 9 Answered

  give symbols of all elements
Asked by vsrushil | 30 Jun, 2018, 02:58: PM
answered-by-expert Expert Answer
The symbol, number of protons, number of neutrons, number of electrons, distribution of electrons and valency of the first 30 elements:
 
 
 
 
 
Answered by Ramandeep | 30 Jun, 2018, 07:05: PM

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